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73 Magazine (Amateur Radio Today)

73 Magazine (also known as 73 Amateur Radio Today) (OCLC 22239204) was a United States-based amateur radio magazine that was published from 1960 to 2003. It was known for its strong emphasis on technical articles and for the lengthy editorials in each issue by its founder and publisher, Wayne Green. The magazine title, 73, means "best regards" in amateur radio lingo. Green, a former editor of CQ Amateur Radio magazine, published the first issue of 73 in October 1960.



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73 Magazine (Amateur Radio Today)
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73 Magazine October 1989 (#349) Setting Up a Packet Radio Station - Read this for the info the how-to books left out! ...... WB6RQN 14 Digital Dreams - The future of packet radio has arrived ...... N3EUA 28 TNC PPM without the PC - Give your older TNC personal mailbox capability with just a few keystrokes ...... WB6WKB 30 Packet Radio in Japan - Bits of info on packet in the land of the Rising Sun ...... WA1LBP 38 Packet Radio and Hi-Tech Nomadics - How packet radio fits in with the world's...
Topics: radio, packet, amateur, tnc, ssb, mhz, modem, antenna, ham, amateur radio, packet radio, feedback...
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73 Magazine October 1978 (#217) DXpeditioning - a "how to" guide ...... WA2VMS 26 VHF On Your Frequency Counter - an easy-to-build prescaler ...... WB0KLH 34 The KM1CC Story - hams celebrate Marconi's miracle ...... WA1JWD 38 Good News! - easy autoranging for your counter ...... Lassagne 44 Mighty Mods for the 820S - more power and convenience ...... K4FK, WA4KIL 48 Improving Heath's HT - a hall-dozen swell mods ...... WA6TLK 54 Total Control - a versatile TT system ...... WB2MPZ 60...
Topics: mhz, frequency, amateur, antenna, output, radio, meter, power, model, switch, amateur radio, power...
73 Magazine (Amateur Radio Today)
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73 Magazine October 1976 (#192) Build a Weird 2 Band Mobile Antenna - fantastic parking lot car locater ...... W6AAQ 20 Build a Counter for Your Receiver - updating receiver fun ...... WA3YGJ 28 How Do You Use ICs? - part II ...... WA2SUT/NNN0ZVB 38 QRP Fun on 40 and 80 - have a real ball with just 5 Watts! ...... K5JRN 44 The Hybrid Quad - has low windload, expense, hassle ...... WB8VCS 48 Frequency Detector for Your Counter - sounds alarm when set frequency occurs ...... W2AOO 50 Programmable...
Topics: frequency, output, antenna, circuit, amateur, program, mhz, kit, power, input, amateur radio, power...
73 Magazine (Amateur Radio Today)
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73 Magazine June 1976 (#188) Super COR - digital ...of course! ...... WA0BMP, WB0JHS 16 Touchtone Decoder - using a calculator readout ...... W2AOO 26 Simple Amateur TV Transmitter - at a QRP price ...... WB4YTU/WA9GVK 28 Amateur TV Receiving System - some of what you wanted to know ...... WB4YTU/WA9GVK 33 Glass Arm - the dreaded CW man's disease ...... Bach 38 Mobile Autodialer - six preprogrammed numbers ...... WB9LTA 44 Autocall '76 - using a touch tone decoder ...... WA6JMM 52 Build This...
Topics: amateur, circuit, output, mhz, kit, radio, repeater, input, data, logic, amateur radio, power...
73 Magazine (Amateur Radio Today)
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73 Magazine February 1996 (#425) Satellites, Weather Imagery, and Sunrayce '95 - There's an Indiana Jones in each of us ...... K8WPI 10 Souping Up a Surplus field Strength Meter - Increase the sensitivity of your ME-61/GRC field strength meter ...... AD5X 18 Microwaving on Monument Peak - The story behind our cover photo ...... WB6IGP 20 A Mobile Power Panel - Protect your vehicle and your rig ...... N2YMW 21 Do You Remember? ...... W5UOJ 22 Basic Packet Modem ...... N3PRT 24 UHF/VHF Home-Brew...
Topics: radio, amateur, power, antenna, ihe, meter, mhz, ham, thai, amateur radio, radio today, feedback...
73 Magazine (Amateur Radio Today)
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73 Magazine November 1991 (#374) Voice ID on a Chip - Throw your voice with this versatile Circuit ...... WB8ELK 11 Portable Frequency Counters - Versatile test equipment that you can really count on ...... WB6NOA 15 Half-Wave Gain Antenna - For 450 MHz handie talkies ...... AD5X 26 The Heli-Hat Antenna - An 18-inch wonder for 10-17 meters ...... KB4ZGC 32 Showdown in Portland - Discover the thrill of radiosporting ...... K0OV 38 Microprocessor Repeater Controller, Part II - This month, the...
Topics: antenna, radio, mhz, amateur, repeater, frequency, audio, ham, ihe, amateur radio, radio today, ham...
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73 Magazine September 1982 (#264) Micro Modem - a RTTY TU designed for computers ...... WA4CKQ 10 F1 for the Hot Water 101 -all the way with FSK! ...... K0JH 20 No-Frills RTTY - $2OO and you're on the air ...... WA4STO 24 Incredibly Simple RTTY - receive it on your TRS-40 ...... WQXI 28 The RTTY/Tri-bander Marriage - enjoy the 100% duty cycle ...... K0ARC 32 Confessions of a Counter Evolutionary - part II ...... WAZFPT 38 Double Trouble 0n 50 MHz - Home-Brew Contest runner-up ...... KL7CLK 58...
Topics: output, antenna, mhz, rtty, amateur, input, frequency, radio, magazine, power, amateur radio, power...
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73 Magazine September 1979 (#228) Power Line DXCC (Distant Control Circuit) - the ac lines are a already there... why not use 'em for remote control? ...... W9CGI 34 Blueprint for Biofeedback Experimentation - fertile ground for pioneers ...... WD5BNL 42 The History of Ham Radio - part X ...... W9CI 44 Maximum Security for the 22S - remote control puts your Icom in the trunk ...... K8KW 48 The Big Blinker - a visual signal for the deaf ...... AD5X 50 Morse Converter for DMMs - super gadget for...
Topics: antenna, amateur, mhz, output, radio, power, frequency, ham, kit, amateur radio, power supply,...
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73 Magazine June 1970 (#117) A Practical DDRR Antenna - Expensive, difficult-to-build mediocre antenna ...... W6WYQ 20 VFO Circuit - In case you are tired of crystal control ...... K0HVK 36 The Low-Noise Antenna - High noise you're looking for? ...... WB6JNI 39 Experimental Remote SWR Indicator - Experimental means we think it might work ...... W2EEY 41 The Little Wonder: Mark 11 - Proving again that almost anything will radiate ...... W5ZBC 46 CW Can Be Fun (With the Ord DK-1) - if you know...
Topics: antenna, erm, meter, swr, amateur, element, radio, ham, tuning, output, amateur radio, ground...
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73 Magazine April 1972 (#139) 200 Watt 2m Amplifier - Now you can be unpopular in six counties ...... W4RIZ 17 Using the Drake TR-22 - Does more than DU2 ...... W4FQM/l 25 An Auto-Bandwidth Selector Unit - Using two ICs ...... W2EEY 27 "Break" - A typical day on 2m FM ...... K1NUN/1 31 AFSK-MCW-CPO IC - Prizes if you can translate that ...... K9MRL 36 Using the LM373 - I-f amplifier IC projects ...... K4DHC 37 Repeater Site Alarm - Hear your gear being stolen or vandalized .........
Topics: repeater, frequency, mhz, output, receiver, audio, circuit, power, amateur, radio, amateur radio,...
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73 Magazine October 1977 (#205) Communicate On 10.25 GHz - with a simple transceiver ...... WA3ETD 26 Home Brew Tilt-Over - the water pipe special ...... W4MEA 30 Minimize Feedline Loss - UHF buffs, front end center! ...... W2STM 32 How About 6 FM? - it's easy with a modified HE-50 ...... W3KBM 34 W.A.S. -Easily! - catching the last few ...... W7FGD 38 Fool the Wire Wizard - a computer would have helped ...... Simmons 42 Ultra Simple Diode Checker - for grab bag specials ...... K4GOK 44 Beat...
Topics: mhz, frequency, antenna, output, power, amateur, kit, meter, radio, circuit, amateur radio, tufts...
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73 Magazine September 1994 (#408) Compact 160 Meter Transmitting Loop Antenna - You don't need to move to a new QTH! ...... G2BZQ 10 The Discriminator - A directional receiving antenna for hams and SWLs ...... G2BZO 16 Low-Cost Transmission Lines - What you don't know can cost you ...... K5DKZ 22 The Challenge of 1750 Meters - No license required ...... WD4PLI/6 36 The HOFI Antenna Switch - Quality at every turn ...... WA4BLC 24 Computer Automation Technology's CAT 1000 and CAT 300 Repeater...
Topics: radio, antenna, amateur, ham, repeater, amateur radio, meter, mhz, ham radio, radio today, feedback...
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73 Magazine November 1997 (#446) How to Design Your Own HF Antenna - No excuses after this ...... VA3ACK 10 Readin', Writin', and Robotin' - Is your high school entered in FIRST? ...... Gray 17 Our Friend Pythagoras - Pop quiz: Who can state the Pythagorean Theorem? ...... N0BLX 19 Electronic Construction from A to Z - Everything you wanted to know about building stuff but were afraid to ask ...... AA0XI/VK5FN 21 The Table Topper 160-Meter Loop - Compact, low-noise -and effective ...... G2BZQ...
Topics: radio, amateur, antenna, voltage, thai, ham, power, meter, radio today, amateur radio, power...
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73 Magazine November 2002 (#504) Your Turn for a Coil Winder - The Gingery Universal Coil Winder can be an easy and handy addition to your bench ...... K8ZOA 10 Multiple CW Filters - Here are some clear descriptions and examples of how you can set up an active audio filter ...... W2GOM/7 16 Automotive Battery Voltage Monitor - Interesting to analyze, simple to build ...... KC5MFY 20 Travels with Henryk -Part 9 - CQ de Havana ...... SM0JHF 22 I Love My 80m Loop! - And you will, too! ...... KL7JR...
Topics: radio, amateur, antenna, ham, wire, power, frequency, ihe, amateur radio, voltage, radio today, ham...
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73 Magazine November 1977 (#206) Build The Omni-OSCAR! - practical omnidirectional antenna ...... K2OVS 24 Get Set For OSCAR 8 - details on the new bird! ...... W3HUC 28 Build An OSCAR 2m Transverter - make QRP days a success! ...... W2GN 32 Predicting OSCAR Propagation - not always simple ...... G3IOR 34 Try OSCAR Mobile - the ultimate DX test! ...... W2GN 40 Tic Tac Touchtone - a new mentod! ...... W9CGI 44 Visual OSCAR Finder - nice side effects! ...... WB2BWJ 50 Cheap Ears For OSCAR - an...
Topics: mhz, oscar, antenna, frequency, kit, power, satellite, meter, amateur, model, power supply, amateur...
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73 Magazine January 1995 (#412) The Pyramid Antenna - Harness the power of this 10 meter workhorse ...... W9CGl 14 Using GE Progress Line Receiver Strips - A low-tech solution for many situations ...... KI5PGI 24 PTT Control from Receiver Audio - Here's an easy way to key a transmitter for remote or repeater operation ...... KB8XI 32 The 80/40/30m Tripole - It's a what? ...... W9CGI 36 The Yaesu FT-840 HF Transceiver - Enjoy a simple-to operate full-featured HF rig ...... N1BAC 10 The MFJ-1796...
Topics: antenna, radio, amateur, ham, mhz, mfj, power, receiver, audio, frequency, amateur radio, radio...
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73 Magazine October 1983 (#277) Six Antennas from Three Wires - With these modified Beverage antennas, you double your directions without doubling your cost ...... K1VR, N1RC 10 Join the Packet-Radio Revolution -Part II - Warm up your soldering irons. This part offers the nuts and bolts of building your own TNC ...... WA7CXD 20 Become a Low-Band Pioneer - Where does an audio transistor become a gccd rf amp? On 1700 meters, of course ...... KL7GLK 34 The Phantom Antenna of Possum Hollow - The...
Topics: antenna, radio, amateur, mhz, ham, frequency, magazine, antennas, ihe, amateur radio, ham radio,...
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73 Magazine August 1964 (#47) Two-Band Transistor Transmitter ...... QZ7BQ 6 Two Meter Transistor Receiver ...... K6TOV 14 Stripping Transistor Radios ...... K8YCH 20 UHF Beacon ...... W6GGV 22 Squelch for Transistor Receivers ...... Geisler 28 Those Fragile Transistors ...... K4CPR 29 Transistor AM-FM VFO ... WA0HQA 30 Transistor Final for Forty ......W0TKX 34 Minute kW Power Supply .... K8IKA 40 The Signal Helper ...... W3WJN 44 Transistorized Receiver ...... Morgan 46 Simplified Transistor...
Topics: transistor, voltage, receiver, emitter, tlie, collector, amateur, circuit, frequency, output, power...
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73 Magazine November 1979 (#230) New Rig for 10 FM - a review of the Comtronix FM80 ...... K4TWJ 38 The Black Art of Antenna Design - shedding some light on the workings of vertical whips ...... Reynolds 40 Introducing the 2m/220 Connection - give crossband operation a try with this inter-connection scheme ...... WB4HXE 48 A Fresh Start for your Old Tx - modernize it with grid-block keying ...... KE4Y 52 An Inflation fighter for 220 - join the fun inexpensively ...... WA3HWG 54 Building Long...
Topics: antenna, erm, mhz, amateur, frequency, circuit, radio, khz, tor, amateur radio, power supply, toll...
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73 Magazine May 1995 (#416) Builder's Guide to the Universe - A beginner's guide to home-brewing ...... WB8VGE 10 Wart Remover - Build this easy module to eliminate unsightly wall parasites from your shack ...... WB8VGE 16 6 Meters-The In-Between Band - Excitement for all license classes ...... WB6NOA 34 A Foolproof Power Controller - Be prepared when the commercial power shuts off ...... KN4HL 40 K4SYU Loop Antenna - A compact, portable HF solution ...... K4SYU 44 The Trident TR-1200...
Topics: radio, ihe, amateur, antenna, mhz, meter, power, noise, ham, swr, amateur radio, radio today, power...
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73 Magazine October 1986 (#313) Just the FAX, Ma'am - Check out NOAA's eyes in the sky with this one-chip weather FAX decoder for your C-64 ...... WB8TPD 24 Make the Switch to PIN Diodes - Unbelievably fast, PIN diodes can drag your tube-bound transceiver into the 80s with silent switching ...... OA4KO/YV5 28 Shoestring Shortwave - Remember when rigs were built on pine bases? Try KICLL's converter for old time's sake ...... K1CLL 34 The End of the Rope - Some days you just want to mail your...
Topics: amateur, radio, antenna, mhz, repeater, frequency, receiver, ssb, power, amateur radio, power...
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73 Magazine November 1967 (#86) Integrated Circuit Frequency Counter - A 100 kHz counter for less than $50 ...... W0LMD 6 2 Kilowatt PEP for Six Meters - A complete transverter for 50 MHz ...... K6RIL 12 A Pulse Generator for the Amateur - Versetile test equipment for the shack ...... W6GXN 20 Mighty Four on Six - Low-cost transistor transmitter for six meters ...... K9VXL 24 Incentive Licensing - Complete story on our new regulations ...... W1DTY 28 Feeding the Cat Underwater - Experiments...
Topics: amateur, antenna, radio, ham, voltage, meter, frequency, power, transistor, khz, amateur radio,...
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73 Magazine September 1976 (#191) Balloon to Balloon! - another 73 first ...... W2NSD/1 20 The Surprising DORA Low Noise Antenna - part II ...... Boyer 34 Ultrasimple Regulation with New IC - power supply design greatly simplified ...... WB0JLS 48 Can An Indoor Antenna Work? - making the best of a bad bargain ...... Staff 56 12 Inexpensive Volts for Your Base Station - parts right out of your local Radio Shack ...... WA8WVF 60 A Test Lab Bonanza - using a transistor radio ...... WA7SCB 64...
Topics: antenna, mhz, kit, amateur, frequency, radio, power, voltage, input, ham, amateur radio, barrel...
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73 Magazine November 1988 (#338) Homing In - Find out about the fun of RDF ...... K0OV 18 All About Henry - Wide range inductance checker ...... WB4DCV 22 Lap Top Repeater Controller - Why build more hardware than you have to? ...... KF5WO 27 Kenwood 4100A Crossband Repeater - Convert your mobile rig to a two-band repeater ...... W3RW 39 Ultimate Repeater IDer - Store a library of IDs to choose from ...... K7PF 45 Computerized Tuning - Tune your rig from a micro keyboard ...... KF6DF 49 Life of...
Topics: repeater, amateur, radio, antenna, mhz, ham, frequency, power, amateur radio, feedback card, ham...
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73 Magazine November 1992 (#386) The QRP 80/40 CW Sender - QRP power and QRP cost ...... G2BZQ 8 The Noise Remover - A simple, effective way to get rid of the static ...... K8MKB 12 An All-Band HF Mobile Antenna - Efficient and inexpensive ...... KC4TMT 18 Spread Spectrum Primer - What is spread spectrum, anyway? ...... KC6YJY 29 The JRL-2000 HF MOSFET Linear Amplifier - A solid-state, no-tune kilowatt with very advanced features ...... WA4BLC 26 The FS 73 Signal Cube Digital Field Strength...
Topics: radio, amateur, ihe, antenna, mhz, repeater, ham, frequency, spectrum, amateur radio, spread...
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73 Magazine June 1989 (#345) Spread-Spectrum - Hams, too, can use this mode! ...... N4ICK 12 The Net/ROM-NordLink Question - Bootlegged software? ...... WB2KQI 34 Decoding OSCAR Telemetry, Part II - Learn about the state of F-O-12 and OSCARs-to-be ...... G3RUH 58 QRP CW Transceiver - Enjoy 30 or 40m QRP operation with this easy-to-build rig ...... NZ5G and N5HNN 20 The G3IGU Transceiver - Designed for 80m QRP fun ...... G3IGU 26 The 220 MHz DMOS Linear Amplifier Project - Give a boost to the...
Topics: amateur, radio, antenna, frequency, mhz, power, ham, meter, output, circuit, amateur radio,...
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73 Magazine January 1997 (#436) The ScopeMixer - An adventure in ham radio systems integration ...... N6GKC 10 A Flexible Keyer - A weekend of investments: a lifetime of ease ...... W2GOW/7 17 Simple Mods for the Ramsey FX Transceiver Kit - Customize it! ...... N0BLX 24 Build This Receiver Pre-Amplifier - And use just about anything for an antenna ...... W9CHV 26 Rechargeable Batteries - The bottom line ...... NZ9E 28 A Positive and Negative Power Supply - A simple one-evening project .........
Topics: radio, antenna, voltage, amateur, mhz, ham, power, output, transmitter, amateur radio, radio today,...
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73 Magazine September 1980 (#240) In Profile: Dick Bash KL7IHP - the father of The Final Exam speaks out ...... N1AUI 40 That Mysterious Mode: 10 FM - an examination of propagation phenomena ...... WB2EQG 44 The World Above 430 - part II: next stop, 1296 ...... W9CGI 52 Bridge Over Troubled Audio - another method for driving speakers ...... K4IPV 56 Load a Lawn Chair - even if you can't carry a tune, you can build this matchbox ...... WB5PPV 60 The Penultimate CPO - a non-discrete LSI device...
Topics: mhz, output, frequency, antenna, power, signal, amateur, audio, kit, input, amateur radio, power...
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73 Magazine March 2003 (#508) Build Your DREAM Antenna - As in Dual-suspension, Removable, Easy-to-build, Amateur-radio, Multiple-band, 10-meter mobile antenna system ...... AC3L 10 All Keyed Up - Over this neat project ...... K8ZOA 14 Junkbox Telephone Recording Adapter - Caught on tape ...... KC5MFY 21 Meter Made - Here's how to recycle those VU meters in old stereos ...... N2DCH 23 Autobiography of Everyham -Part 1 - How many times do you see yourself in this story? ...... WB9YBM 26 All...
Topics: radio, amateur, antenna, mhz, frequency, march, photo, digital, circuit, amateur radio, radio...
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73 Magazine April 2003 (#509) Right Fancy CPO - A keyer from My Kid Brother ...... K8MKB 10 Ham's Handy Heat Hunter - Let this temperature probe take your shack's temperatures ...... KC5MFY 20 Ozzie's Jupi-Loop - Use an aircore balun with your Ten-Tee Jupiter ...... W5RK 23 Ishmod Update -Trams ...... 24 Travels with Henryk -Part 11 - Adoring the Azores..... SM0JHF 27 The Interrelationship of the Coriolis Force, the Helix Effect, and So-called Einstein Antennas - As usual, 73 takes you right to...
Topics: amateur, radio, battery, mhz, antenna, april, ham, frequency, smbus, amateur radio, radio today,...
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73 Magazine December 1969 (#111) Quick, Easy, Dependable Transistor Diode Checker - For those who like checkered diodes ...... W6ICC 6 Did Samuel Morse Really Invent the Telegraph? - Telegraph? What's that? ...... W2FEZ 10 Combination Dummy Load/Attenuator Network - Also doubles as a hot plate for your coffee warming ...... W2EEY 14 Tuned Filter Chokes - The Easy Way - Can your filter chokes carry a tune? ...... W2OLU 18 Hey OM - You've Got Carrier There - "Drop dead, you...
Topics: circuit, frequency, amateur, output, crystal, power, meter, input, oscillator, mhz, amateur radio,...
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73 Magazine October 1972 (#145) Frequency Synthesizer for 2 Meter FM Part II - For any 2m rig ...... K2OAW 15 A Big New Voice in Chicago - September cover feature at last ...... W9NLT 25 Solid State 6 Meter Crystal - HET - VFO - Solid State - the Works ...... K1CLL 29 The FET Voltmeter As A Nano-Amperemeter - For checking FET's ...... ZL2AMJ 37 Time/Frequency Measuring System Part I - Station clock and frequency counter ...... K5OUS 39 Active Filter Design and Use : Part IV - Movie rights for...
Topics: mhz, frequency, output, circuit, power, crystal, fone, amateur, receiver, meter, amateur radio,...
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73 Magazine June 1982 (#261) Build This Digital Vfo - a microprocessor makes it simple ...... WA5VQK 12 Surviving the Unthinkable - part II : some practical ideas ...... AK0Q 30 A Split Personality for the KDK FM2015R ...... K0BV 40 Building for Beginners - happiness is a hot soldering iron ...... N1II 42 Coping with PC Boards - it's not easy to be virtuous ...... KC7M 48 'Lite Receiver IV - the second half ...... WA4CVP, WA4OSR 52 TVRO Transducer - waveguide-to-coax transition ...... WA4CVP,...
Topics: mhz, amateur, radio, antenna, frequency, kit, magazine, receiver, ham, amateur radio, power supply,...
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73 Magazine May 1988 (#332) Why Do Satellites? - More reasons than you can argue against ...... N5BF 11 UoSATS - Space science from Surrey ...... N5AHD 20 OSCAR History - Project OSCAR is nearly 30 years old ...... K6LFH 27 Hamsat Awards - Set your sights high ...... WB5RMA 30 Hard-Line Connector - A little work saves a Lot of money ...... W5PFG 32 Uncle Wayne's Ham Shack Winners - The happiest hams of the month ...... 34 Winnebiko Power Supply - New technology in a practical package .........
Topics: amateur, radio, satellite, amateur radio, feedback card, mhz, repeater, oscar, frequency, antenna,...
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73 Magazine July 1989 (#346) 10 Meter Survival Guide - The lowdown on this versatile HF band ...... N8DNX 12 "Black Bag" Portable - QRP OSCAR station on the go ...... N6DGK 26 Harmonic History - Ham children lead unique lives ...... O'Connell 28 Inexpensive Hardline - Build this Z match and save a bundle ...... KA9LNV 16 Four In/Five Out - Independently adjustable mixed audio outputs ...... KA0LDB 37 Good Mobile Audio-For Pennies - Easy way to feed rig audio to your car speaker system...
Topics: mhz, antenna, amateur, radio, frequency, ham, repeater, avt, center, connector, amateur radio,...
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73 Magazine July 1963 (#34) Sizzling Six - Super sensitive six meter converter. Kit available ...... W9DUT 8 Chemical City TU - One of the best RTTY converters to come along so far ...... K8IQJ 14 Low-Ebb in the Sunspot Cycle - "Humph, that's science fiction" said Tom astoundingly ...... K2TKN 17 Two-Banding the Swan One Bander - Cinch ...... W8DZH 18 Six Meter Transmitter - 2E26 output. Kit available on terrific tuning-indicator ...... K6GKU 22 Two Meter Antenna Coupler and SWR...
Topics: meter, quad, antenna, power, circuit, transmitter, ham, amateur, output, audio, single tone,...
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Topics: antenna, radio, amateur, ihe, signal, frequency, voltage, mhz, arc, amateur radio, radio today, ham...
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73 Magazine October 1966 (#73) Integrated Circuits - How will they affect you? ...... WA1CCH 4 EI Marrinero - An inexpensive eighty meter SSB transceiver ...... W6BlZ 6 Two Tubes for Two - SSB on two with two tubes and a twenty meter transceiver ...... K9EID 16 432 MHz Transmitting Converter - Not too expensive or hard to build ...... K6RIL 18 A Two Meter FET Converter - Low-noise, low-cost and low cross-modulation ...... K6HMO 22 Electronic Thermometer - Make sure that your linear doesn't cook...
Topics: zener, tlie, voltage, receiver, circuit, antenna, meter, power, volts, output, power supply,...
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73 Magazine July 1976 (#189) Handy Dandy Soldering Iron Cooler Offer ...... WB4FDQ 18 Perfect CW - drive 'em crazy with the Keycoder I ...... WA9VGS 20 The Mini-Mite All-band QRP Rig - runs a mighty seven Watts ...... WA7SCB 30 A Fun Counter Project - an invaluable test instrument for under $50? ...... Plavcan 36 Build a FAX from Scratch - then get satellite pictures and other things ...... W4NK 44 Der Repeatermeister - repeater control, with ID ...... WA1UFE 58 Lightning and Thunder and Other...
Topics: output, power, circuit, kit, antenna, mhz, clock, pin, amateur, frequency, power supply, amateur...
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73 Magazine March 1962 (#18) Printed Circuit VFO - Extreme stability and simplicity of construction in this 50 MHz VFO may bug you to build ...... W5UB 6 Regulated Bias Supply - Great for linears, develops -20 to -120V @ 0-70 mA and presents only 6 ohms to grid ...... W5IUR 12 Check Transistors with an Ohmmeter - Here is the simplest test for transistors yet, and it's safe and works ...... W9QKC 14 Radar Detector - All you 2,500 MHz SWL's (UNFL's?) will appreciate this mobile receiver .........
Topics: antenna, frequency, meter, circuit, output, power, modulation, signal, receiver, pulse, power...
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73 Magazine August 1998 (#455) A Silk Purse... - Easy upgrades for Heathkit's SB-104 transceiver ...... K9ARF 10 Power to the People! - To hams who build this tuned input network, that is ...... W2CQM 14 Secrets of Deviant Behavior - Measuring FM deviation need not be a mystery ...... W6WTU 18 Only One Antenna - All about multibands ...... W2BLC 21 Cool It! - Cold facts about the hot topic of heat transfer ...... W2GOM/7 24 Intro to Superhets - Part 1: History and overview ...... W6WTU 38...
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73 Magazine April 1995 (#415) A Practical Weather Satellite Receiving System, Part 2 - Software and interfacing with me PC ...... ZR6UM 10 Build an Intelligent Relay - A quick-to-make microprocessor-based device, controlled by your HT ...... N8LXS 22 The Antenna Elevator - The closest thing to a skyhook ...... WB2DZF 36 Specialized Top-Band OX Receiving Loop - Listen to the action on 160 meters ...... G2BZQ 38 Build an Efficient HF Mobile Antenna - An electrically and mechanically sound design,...
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73 Magazine January/Feb 2000 (#471) New Millennium Wish List - A budget-conscious guide to exploring new amateur radio horizons ...... K4TWJ 10 Buffalo Springs Lake Half-Ironman Triathlon - Ham PR at its best ...... KC5VKB 14 Junk Box Audio Test Generator - This scavenged helper is easy to build and fun to use ...... Sellen 22 Read All About It! - Part 2 of good stuff from The Hertzian Herald ...... K8JWR 26 73's DX Dynasty Award Winners ...... Staff 29 Secrets of Transmission Lines - Part 6:...
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73 Magazine May 1963 (#32) Six Meter Transceiver - Cute little five transistor hand-held unit. Parts kit available ...... K3NHI 8 6DJ8/ECC88 Converter - Six meters down to 14 MHz using really hot front-end tube ...... WA2HVK 11 Simple T-R Switch - For the CW man who wants full break-in without TVI ...... W4MLE 12 All-Band Linear Kilowatt - Using the new Amperex 8179 you've been reading-about ...... W2LPC 16 Reducing Receiver Noise - Read this one, it is really important... No kidding .........
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73 Magazine January 1976 (#183) Clocks -Really Simplified! ...... WB2NEL 22 De-Strain Your Ham-M ...... K6BW 26 Hot Carbon ...... W1BNN 28 An Automatic Dialer for the Deluxe Mobile ...... WA4SAM 49 Zapping Dead Nicads to Life ...... K20AW 62 Plugboard Extender for Under $3.00 ...... W3WTO 65 Eyes For Your Shack ...... W0ACR 66 Build This Digital Capacity Meter ...... Chladek 70 The Computer QSO Machine ...... W1HAB 80 The Solder Master ...... K6JM 92 Stack Your ICs -And Pot 'Em ...... W4CUG 94...
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73 Magazine August 1989 (#347) Find Your Signal the First Time! - How to quickly deal with Doppler shift on the hamsats ...... AA6CQ/VE6 44 JEZ-Jugendelektroniczentrum - First-class ham education program ...... HB9DU 46 CTCSS, Fast and Cheap - Simple PL tone board project ...... N6UE 13 COCOA-A COllinear Coaxial Array - Deluxe 80m wire antenna ...... W2OZH 34 Control Your Rig from a PC - This project lets your rig and home computer talk to each other ...... N7IPY 34 Full-Wave VHF Vertical...
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73 Magazine December 1998 (#459) Probing Auto Electronics - Help your neighbor identify his car's problem and be an electronic's hero! ...... W6WTU 10 Announcing the QRPeanut - Here's a compact QRP transmatch you can build for next to nothing ...... N5GZH 14 Keys to Better Operating - Yes, much of it is common sense ...... W6BNB 17 Electronic Bug Emulator - Put some personality back into your CW ...... W4LJD 27 Low-Voltage Detector - for a number of uses ...... W6WTU 31 George's XE-Ient...
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73 Magazine September 2002 (#502) Amplifier Testbench Report - Here's a look at broadband amps that's packed with useful insight ...... K8ZOA 10 2m/70 cm quad Revisited -Part 2 - Try out this new, improved update to a CQ article (July 1999) ...... K8IHQ 18 General-Purpose Interface Board for the ISA Bus - A simple, inexpensive alternative for interfacing resl-time, home-brewed applications to the PC ...... AB2LX 20 Inside a Lampkin - More secrets of deviant behavior ...... W6WTU 26 You Can...
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73 Magazine January 1961 (#4) Nuvistor Converters for Six and Two - 417A performance without 417A cost ...... K8ERV 8 Down With Drift - Step-by-step stabilization of your receiver ...... K5JKX/6 12 6N2 Completed - Eico, Heath, and Johnson kits add up to 100 watts on Six and Two ...... W3UZN 14 1296 MHz - Secret confessions of an UHF addict ...... K2TKN 16 Goblin Patrol - Hams team up with cops to louse up Halloween for the kids ...... W8UCY 18 Lost in a Tunnel - Pioneering frustrations of a...
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73 Magazine July 1974 (#166) Modern 4-1000A Linear - At last -a use for that 4-1000A lying around in your junkbox ...... K8UIR 17 "Free" Batteries for TT Pad Power - 73 lands another great article ...... W3WTO The Scotch Transistor - Hoot Man, you don't have to throw it away after all ...... WA9UFG 31 Poor Man's Universal Frequence Generator - Only after you build it ...... W2EEY 33 Universal AFSK Generator - An article of cosmic importance ...... K6IQL/N0ZIP 37 Cheap 10-mmute Timer...
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73 Magazine February 1963 (#29) 6M SSB - Pros, cons, and the gear to do it with ...... W2NSD 10 432 MHz Gallon - Legal now ...... K2TKN 14 Mountain Topping for Blood - An old pro doesn't answer ones ...... K1CLL 20 Simplified 8JK Beams - The twin-three really puts out a signal. Really ...... W6WAW 24 Double Sideband - DSB has some decided advantages, you might as well read this and face it ...... W3PHL 28 Crystal Oscillator - How to get the stability required for moonbounce on 1296. It ain't...
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73 Magazine January 1966 (#64) The Space Monitor - Now, here's a real construction project ...... W9DUT, W9JFW 6 A Unijunction Keyer - Build a modern keyer for less than $20 ...... WA6TSA 12 Two-Element 20m Vertical Array - Get 3 dB gain and 15 dB front-to-back ratio ...... W6TKA 16 They Said It Couldn't Be Done - What? A female build a rig? ...... WA2YTK 18 Simplified RF Measurements - Measure impedance and power easily ...... WA6BSO 20 A Six Meter Peanut Whistle - Every ham wants a...
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73 Magazine April 1962 (#19) Six Meter SSB Exciter/Transmitter - Since sideband is going to be the big thing on 6, you'd better start soldering ...... W5JSN/K8NIC 6 Field Strength Meter for Ten and Six - Using a midget loaded whip to improve the sensitivity of your F.S.M ...... W3YZC 9 Forty Meter ZL Special - As the sunspots go, so go the higher bands. Try this 40M amplifier ...... W4AXE 10 73 Tests the Poly-Comm 62B - Pollytronics has really done it: Six and two in one li'l package .........
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73 Magazine February 2002 (#495) Weather Sat Tracking is Awesome! - Real science means real fun for 8 to 12-year-olds! ...... VK2BXX 10 Not Simply Another Keyer! - That's right! It's better ...... W2GOM/7 16 Direct-Mount "J" Antenna for 440 MHz HTs - If you're looking for better performance ...... W4JC 21 New Life for a Pierson KE-93 - Part 1 of 3 ...... W6WTU 24 Lamps from Tubes - For fun and profit -and gifts! ...... WA2OKZ 28 LOPs to Think About - Come aboard for a great surplus...
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73 Magazine May 1975 (#176) IC Call Sign Generator ...... VE3GSP 10 Faxing SSTV ...... K6IGC 15 Fat Nixies for Chronometer Nuts ...... W2AOO 23 Latest K2OAW Counter Update ...... WB2UKP 30 How to Become a Famous Author ...... K2OAW 33 Playing with Power on 432 ...... K1CLL 40 More Fun with the IC-230 ...... WA6VJR 45 Does Ether Cause Gravity? ...... W6NLB/7 49 Mother's Day Special : The Violet Tester ...... W2AOO 52 The TT-63A Regenerative Repeater ...... WB4APC 55 Oscaring Your FM Rig .........
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73 Magazine July 1991 (#370) Micro ATV Transmitter - Can the Dick Tracy video wristwatch be far away? ...... KC6CCC 9 Tropo Time Is Now! - Talk thousands of miles on the VHF/UHF bands ...... WB6NOA 14 Antennas by the Yard - HT antennas that realty measure up! ...... WA6TLK 22 The Megaloop - Perfect for megalomaniacs ...... W1GV 29 Lightning Protection - Want some peace of mind? ...... NU1A 32 The Flight of STS-37 - The first "all-ham" crew ...... KC4YER 34 Software for the Ham Shack,...
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73 Magazine January 1975 (#172) Using The W. U. Desk Fax ...... K7QXL 25 How to Find the Satellite ...... WB8DQT 31 RTTY Secrets ...... W3JJU 42 The 432 Receiver ...... K1CLL 46 The AN/GR R-5 Receiver ...... W6JTT 64 TTL a s a Decoder Mode ...... W9CGI 57 Simplifying Satellite DXing ...... WB5ASA 77 Blow a Bundle on TTLs ...... K2OAW 81 The R-511, A Real Surplus Bargain ...... W6JTT 86 How Not to be a Loser ...... W9KXJ 91 The Versatile Transistor Checker ...... W5WGF 94 SSTV Video Analysis...
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73 Magazine December 1990 (#363) Behold the BackPacket! - Go take a hike with packet radio ...... NW6H 9 Upgrade Your HD-4040 - KISS your Heath HD-4040 and keep AX.25 too! ...... N2BLI 19 The VOX Plus HT Accessory - Enjoy base station performance -with your HT! ...... WA2EBY 24 Pack Your Seabag, "Sparks" - Do you want to be a ship's Radio Officer? ...... N0MM 35 Audio Powered Tape Recorder Controller - Add convenience to your hamshack ......KE0UV 54 Ten-Tee's Hercules II Model 420 -...
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73 Magazine June 1973 (#153) Simple Generator for 222 MHz - This three transistor oscillator and attenuator will enable you to tune up a 222 receiver or antenna and measure the sensitivity. There are still new worlds to explore -try 222 ...... K1CLL 23 Miniature 80 and 40 Meter Antenna - Brand new idea for the experimenter - don't, say there isn't anything new that amateurs are working on. Get cracking ...... W2EEV 29 UHF Output Meter - Accurately measuring rf power at 444 MHz is a problem...
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73 Magazine September 1999 (#467) PIC Key, PIC Key - This simple CW keyer is a great way to learn about PICs ...... UY5DJ 10 Y2K Portable J-Pole - What emergency will you need to handle? ...... WA8TXT 16 Defogging Microstrips - An intro to microstripline filters ...... WA9PYH 19 Secrets of Transmission Lines - Part 2: Review of AC fundamentals ...... KE2QJ 26 Getting Your Foot in the Public Service Door - Here's how to get your club invoIved -and appreciated ...... KN4HL 30 Simple RF Signal...
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73 Magazine October 1974 (#169) The FCC As Seen By - The old Roshoman bit ...... W6EIF 20 Introduction to Micro Transistors - Build this 6m transmitter ...... K1CLL 24 Build a 2m Frequency Synthesizer - Part I ...the theory ...... W8KBC 31 Repeater Government Guide - Laws and by-laws ...... W5OJZ 37 The Heath HWA 202-1: Any Good? - Reader test report - did he like it? ...... W3WTO 41 Simple Power Supply for Digital Work - Actually, it's complicated ...... K2OAW 43 Flood Emergency! - Hams save...
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73 Magazine August 1986 (#311) A Packet Primer - For the totally bewildered -learn the mechanics of packet without having to ask embarrassing questions ...... W1BEL 28 How To Make Friends At 1200 Baud - Answers the question "What do I do with it?" that you asked after reading the primer. This article explains the operating side of packet ...... W2JUP 34 Precision Packet Tuning - Complete plans for building what could be the world's best packet/RTTY tuning indicator. It's all digital...
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73 Magazine June 1987 (#321) A Guided Tour of 1.2 GHz - The 23-cm band is Novice Enhancement's least-understood allocation-come on up and see what you've been missing ...... KT2B 24 The Digital Novice - Jim Grubbs leads you through the basics of a ham's digital world -from Sam Morse through packet ...... K9EI 28 Tune In 220 - Convert the GE MASTR-PRO receiver to 220 MHz -it's as easy as winding a few coils ...... W3DTN 32 Novice Enhancement Buyer's Guide - Everything and anything that the...
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73 Magazine August 2001 (#489) Amazon Death Flight - When these missionaries -and hams- were shot down, the official apology was too little, too late ...... W8NXD 10 "CQ ET!" - The UFO Watchtower DXpedition ...... WA3QLW 12 The Wall-Wart Bible - Say "Amen!" to this treatise on troubleshooting these ubiquitous supplies ...... KJ4W 14 Return of the Wavemeter - Nostalgia? Fun project? Or both? ...... W6WTU 19 Your Long-Lost Transistor Notebook - Part 2 of 4 ...... W6WTU 24...
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73 Magazine February 1967 (#77) Getting Acquainted With Integrated Circuits - Here's practical information on using inexpensive ICs ...... Thorp 6 Using Low-Cost FET's on Six - Two $1 FETs and a cheap PNP give 2 dB NF and high overload resistance ...... W6AJF 11 Low Cross-Modulation on Two - A $ 1 FET makes an excellent mixer on two ...... W6AJF 14 The 30P1 Linear Amplifier - A peasant's 30L1: Four 811As ...... W1DBN 18 An Improved Multiplier for UHF - Get enough local injection on 1296 MHz...
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73 Magazine March 1988 (#330) Welcome, Newcomers! - Why just VHF antennas ...... KA1HY 4 Winnebiko - A close look at Winnebiko's 2 meter lifeline ...... N4RVE 12 10 meter Beam - With a little money you can gain a lot ...... N0BLX 14 Heath SB-200/220 Mod - More mileage out of a workhorse amp ...... VE5XZ 20 Ten Meter Meteor Scatter - DXing with a difference ...... WB5KYK 22 Mobile Antenna - Two meters on a broadcast band antenna! ...... W4JC 28 Antennas in the Spring - Spring cleaning above the...
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73 Magazine November 1995 (#422) Home-Brew Quagis - A novice can build these 2m and 440-MHz antennas for under $15 ...... KE6HVH 10 A Boy Scout's "Drab" Life - Teaching in a unique second language ...... KB7UIM 16 A Simple Wattmeter - How much does your equipment cost to power? ...... N7APE 20 The Capacitator - You'll get a charge out of this! ...... VK6BQN 22 Crystal-Controlled Audio Generator - Clean, reliable frequencies from junk box parts ...... KB4ZGC 28 Easily Constructed...
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73 Magazine February 1965 (#53) The Ham and TVI - With clever cartoons by K3SUK ...... WA6OQP 6 Coffee Can VXO for Oscar III - Be ready for QSO's to Europe on two ...... W7SMC6, W6HEK 10 Transistor, Hi, Hi - A few interesting notes on Nipponese transistors ...... K6QKL/ KH6 11 Multiband Vertical Antenna - A simple high-frequency antenna for hams with space problems ...... W3UWV 12 Let's Go Ham TV - The details of getting on the air ...... K3DSM 18 Solid-State SSB Power Supply - With same vital...
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73 Magazine April 1978 (#211) Ecstasy In Multimeterland - build this autoranging marvel ...... WA4AIH 24 How To Succeed On 1296 - cat-food can 50-Watt amplifier ...... W4UCH/2 32 How Do You Use ICs? - part IX ...... WA2SUT/NNN0ZVB 44 You're Still Using Tubes? Yeccch! ...... W6HPH/G5AWI 50 The Challenge Of 10.5 GHz - use it or lose it to Smokey ...... W1SNN/WR1AFE 60 In Search Of the Ultimate - an incredible counter calibrator ...... W6YUY 66 Super Deluxing the TR-33 ...... WA6JFP 72 Feeding A...
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73 Magazine January 1993 (#388) The Techno-Whizzy 1, Part II - Build a direct digital synthesis (DDS) transmitter ...... N9JZW 10 Programmable-Frequency Audio Generator - High accuracy with digital control ...... Redman 16 The SP-1 Transceiver - Build the HF "Spider" ...... WA8TXT 24 Twin Crystal Ladder Filters - Upper or lower sideband filters using inexpensive crystals ...... N2DCH 32 Handi-Beacon - Turn your tape recorder into a beacon controller ...... WB9YBM 38 The Down East...
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73 Magazine January 1991 (#364) High Precision Frequency Standard - Use your TV set as a laboratory standard ...... Johnson 9 Scrounger's Guide to Recycled Electronics - Discover a gold mine of inexpensive parts ...... W5FG 22 An HF/VHF/UHF Marker Generator - Get on frequency for less than $10 ...... K84ZGC 27 A Parallel Port I/O Board - Control your world! ...... VE6BGL 29 The Three-Terminal Regulator - Multiple uses in one package ...... N9RF 40 Rose Parade Mobile - A high-tech HF remote...
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73 Magazine July 1964 (#46) The 432'er: Outboard RF Stage ...... K1CLL 8 The 432'er: RF Amplifier ...... K1CLL 10 The 432'er: Tuned Trough Line Mixer ...... K1CLL 14 The 432'er: Local Oscillator Chain ...... K1CLL 16 The 432'er: First Evening of Listening on 432 ...... K1CLL 20 The BH-2 ...... K5JKX 22 2300 MHz Wavemeter ...... K7YJF 26 VHF Tunable Oscillators ...... K0CZD 36 Six Meter VFO ...... WA6CDO 42 VHF Yagis from TV Antennas ...... W6TKA 44 Semiconductor Schmaltz ..... Kidder 50 The...
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73 Magazine May 1965 (#56) 432 MHz Converter - Easy-to-build converter to get you on 70 cm ...... K6MIO 6 A New Approach to Phasing - Not all SSB transmitters use filters, you know ...... W8HXA 12 The Big Bomb - Runs a gentleman's gallon ...... W0SYK 18 Two for Two - Some antennas for our western hams ...... W6TKA 22 The Trouble with Fred - A fetching tale illustrated by K3SUK ...... Margolis 26 A Versatile Oscilloscope - Every ham needs a scope. This one does a lot, but doesn't cost it .........
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73 Magazine November 1968 (#98) Computer Card Transmitter - Plug in components ...... K1EUJ 6 Crystal Filters - The heart of SSB ...... W3RET 12 Trouble Shooting Solid-State - Modern day problems solved ...... K3PBY 16 IC Frequency Counter - Easy to build counter for ham applications ...... WB6IBS 20 C.V. Transformers for Ham Applications - Keeping the voltage constant in the shack ...... WA9CQN 28 A Space Communications Odyssey - It isn't going to be easy to keep in touch! ...... K6BW 32...
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73 Magazine December 1970 (#123) Solid State Exciters - For the build-don't-buy crowd ...... W6YUY 16 Solid State Control for SSB Exciters - For really smooth tuning ...... W4NVK 28 Hams Are A Funny Bunch of People - Except me and thee ...... K3KMO 31 A 2 Meter Minitransmitter - Hand portable for FM repeaters ...... WB6BIH 32 Receiver Offset Tuning for the HW100 - For tuning in old timers who can't stay on frequency ...... WAZEAW 39 The Little Gate Dipper - 1.7 - 225 MHz GDO with no G .........
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